removed unnessary test

public/app/features/dashboard/specs/AddPanelPanel.test.tsx

-import React from 'react';
-import { AddPanelPanel } from './../dashgrid/AddPanelPanel';
-import { PanelModel } from '../panel_model';
-import { shallow } from 'enzyme';
-import config from '../../../core/config';
-import { getPanelPlugin } from 'app/features/plugins/__mocks__/pluginMocks';
-
-jest.mock('app/core/store', () => ({
-  get: key => {
-    return null;
-  },
-  delete: key => {
-    return null;
-  },
-}));
-
-describe('AddPanelPanel', () => {
-  let wrapper, dashboardMock, panel;
-
-  beforeEach(() => {
-    config.panels = [
-      getPanelPlugin({ id: 'singlestat', sort: 2 }),
-      getPanelPlugin({ id: 'hidden', sort: 100, hideFromList: true }),
-      getPanelPlugin({ id: 'graph', sort: 1 }),
-      getPanelPlugin({ id: 'alexander_zabbix', sort: 100 }),
-      getPanelPlugin({ id: 'piechart', sort: 100 }),
-    ];
-
-    dashboardMock = { toggleRow: jest.fn() };
-
-    panel = new PanelModel({ collapsed: false });
-    wrapper = shallow(<AddPanelPanel panel={panel} dashboard={dashboardMock} />);
-  });
-
-  it('should filter', () => {
-    wrapper.find('input').simulate('change', { target: { value: 'p' } });
-
-    expect(wrapper.find('.add-panel__item').get(1).props.title).toBe('piechart');
-    expect(wrapper.find('.add-panel__item').get(0).props.title).toBe('graph');
-  });
-});